Home / 20,689,916.58-28,552,970.74-11,522,559.32

Finding the Fourth Proportional to 20,689,916.58, 28,552,970.74 and 11,522,559.32

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Solution

The fourth proportional to 20,689,916.58, 28,552,970.74 and 11,522,559.32 is: 15,901,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,916.58 : 28,552,970.74 = 11,522,559.32 : x
  2. Step 2: Convert to fraction form
    20,689,916.58/28,552,970.74 = 11,522,559.32/x
  3. Step 3: Cross multiply
    20,689,916.58x = 28,552,970.74 × 11,522,559.32
  4. Step 4: Simplify right side
    20,689,916.58x = 329,003,299,113,874.31
  5. Step 5: Solve for x
    x = 329,003,299,113,874.31/20,689,916.58
  6. Step 6: Final answer
    x = 15,901,625.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.